Global Warming

I hope you find the video presentation “An Inconvenient Truth” enlightening. Perhaps it will stimulate you to do further investigation into one of the most significant global issues of our time.

As you watch the video focus on the science; look for cause and effect. How do we know this? Why does this happen? So far you have been presented with the results of 50 years of research work showing CO2 levels and global temperatures covering 650,000 years. You have seen photographic evidence of retreating glaciers across the globe and some evidence of increasing storm severity. Much more will come tomorrow.

You will be designing a poster titled “The Science and Solutions of Global Warming” showing causes, effects and recourses so be sure you are taking notes. I’ll provide you with additional resources, but you could be looking for some now.

For anyone who will not be in class tomorrow I will show the rest of the video again Thursday before school starting at 8:30 and after school starting at 3:55.

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Ice Cream Lab

I hope you enjoyed making and eating your ice cream on Friday — I keep telling you science is fun!

  • Have you figured out how heat was used? Remember that heat is the movement of thermal energy.
  • Besides the changes in temperature what other observations did you make? Do you recall taking any notes that might relate to your observations?
  • What was the purpose of the salt?
  • Can you draw a picture showing the flow of thermal energy in your experiment?
  • Were there any anomalies (unexpected results)? What might have caused them?
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